Artificial Neural Network Modeling for Biological Removal of Organic Carbon and Nitrogen from Slaughterhouse Wastewater in a Sequencing Batch Reactor

Table 8

Comparison of ANN Model “C” output and experimental values for test data set.

Serial number	COD removal efficiency (%)		NH4^+-N removal efficiency (%)		Error (%)
	Experimental values	ANN predicted values	Experimental values	ANN predicted values	COD	NH4^+-N
1	93.60	95.24	90.41	88.35	−1.64	2.06
2	90.19	92.85	88.93	90.18	−2.66	−1.25
3	95.22	93.28	92.54	90.76	1.94	1.78
4	94.18	95.15	87.65	88.25	−0.97	−0.60
5	95.21	91.88	91.88	92.85	3.33	−0.97
6	92.39	90.74	89.24	90.12	1.65	−0.88
7	92.56	91.25	89.45	87.48	1.31	1.97